$ git clone -n https://src.fedoraproject.org/rpms/kf5-kguiaddons.git /var/lib/mock/f40-build-2556423-62039/root/chroot_tmpdir/scmroot/kf5-kguiaddons
Cloning into '/var/lib/mock/f40-build-2556423-62039/root/chroot_tmpdir/scmroot/kf5-kguiaddons'...
$ git fetch origin 70a90be6dd8b63f87ffa1bf9d4c97ab6faba3535:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kguiaddons
 * [new ref]         70a90be6dd8b63f87ffa1bf9d4c97ab6faba3535 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70a90be Soften kf6-kguiaddons dependency